1 | /* Export function prototypes from dojump.cc. |
2 | Copyright (C) 2015-2023 Free Software Foundation, Inc. |
3 | |
4 | This file is part of GCC. |
5 | |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free |
8 | Software Foundation; either version 3, or (at your option) any later |
9 | version. |
10 | |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
14 | for more details. |
15 | |
16 | You should have received a copy of the GNU General Public License |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ |
19 | |
20 | #ifndef GCC_DOJUMP_H |
21 | #define GCC_DOJUMP_H |
22 | |
23 | /* At the start of a function, record that we have no previously-pushed |
24 | arguments waiting to be popped. */ |
25 | extern void init_pending_stack_adjust (void); |
26 | |
27 | /* Discard any pending stack adjustment. */ |
28 | extern void discard_pending_stack_adjust (void); |
29 | |
30 | /* When exiting from function, if safe, clear out any pending stack adjust |
31 | so the adjustment won't get done. */ |
32 | extern void clear_pending_stack_adjust (void); |
33 | |
34 | /* Pop any previously-pushed arguments that have not been popped yet. */ |
35 | extern void do_pending_stack_adjust (void); |
36 | |
37 | /* Struct for saving/restoring of pending_stack_adjust/stack_pointer_delta |
38 | values. */ |
39 | |
40 | class saved_pending_stack_adjust |
41 | { |
42 | public: |
43 | /* Saved value of pending_stack_adjust. */ |
44 | poly_int64 x_pending_stack_adjust; |
45 | |
46 | /* Saved value of stack_pointer_delta. */ |
47 | poly_int64 x_stack_pointer_delta; |
48 | }; |
49 | |
50 | /* Remember pending_stack_adjust/stack_pointer_delta. |
51 | To be used around code that may call do_pending_stack_adjust (), |
52 | but the generated code could be discarded e.g. using delete_insns_since. */ |
53 | |
54 | extern void save_pending_stack_adjust (saved_pending_stack_adjust *); |
55 | |
56 | /* Restore the saved pending_stack_adjust/stack_pointer_delta. */ |
57 | |
58 | extern void restore_pending_stack_adjust (saved_pending_stack_adjust *); |
59 | |
60 | extern bool split_comparison (enum rtx_code, machine_mode, |
61 | enum rtx_code *, enum rtx_code *); |
62 | |
63 | /* Generate code to evaluate EXP and jump to LABEL if the value is nonzero. */ |
64 | extern void jumpif (tree exp, rtx_code_label *label, profile_probability prob); |
65 | extern void jumpif_1 (enum tree_code, tree, tree, rtx_code_label *, |
66 | profile_probability); |
67 | |
68 | /* Generate code to evaluate EXP and jump to LABEL if the value is zero. */ |
69 | extern void jumpifnot (tree exp, rtx_code_label *label, |
70 | profile_probability prob); |
71 | extern void jumpifnot_1 (enum tree_code, tree, tree, rtx_code_label *, |
72 | profile_probability); |
73 | |
74 | extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int, tree, |
75 | machine_mode, rtx, rtx_code_label *, |
76 | rtx_code_label *, profile_probability); |
77 | |
78 | extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int, |
79 | machine_mode, rtx, rtx_code_label *, |
80 | rtx_code_label *, profile_probability); |
81 | |
82 | #endif /* GCC_DOJUMP_H */ |
83 | |